CN110828929A - Novel cylindrical electric core liquid cooling module - Google Patents
Novel cylindrical electric core liquid cooling module Download PDFInfo
- Publication number
- CN110828929A CN110828929A CN201810897171.7A CN201810897171A CN110828929A CN 110828929 A CN110828929 A CN 110828929A CN 201810897171 A CN201810897171 A CN 201810897171A CN 110828929 A CN110828929 A CN 110828929A
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- liquid
- liquid cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a novel cylindrical battery cell liquid cooling module, which comprises at least 2 liquid cooling plates arranged in parallel, a cylindrical battery cell, a liquid inlet pipeline, a liquid outlet pipeline, parallel copper sheets, a metal plate end plate and an epoxy plate, wherein liquid cooling channels with parallel structures are arranged in the liquid cooling plates; the invention adopts the liquid inlet pipeline and the liquid outlet pipeline to form a parallel loop structure and a parallel structure of the internal flow channels of the liquid cooling plate, the pressure drop is small, the temperature difference between the single electric cores is small, the energy density between the modules is high, and the heat dissipation and uniformity effects are better.
Description
Technical Field
The invention relates to the field of a battery liquid cooling device of a lithium ion power automobile, in particular to a novel cylindrical battery cell liquid cooling module.
Background
When the power battery is used, the power battery needs to be at a proper temperature to ensure the normal use of the power battery. At present, after batteries are grouped, the problems of serious heating, uneven internal temperature distribution and the like during high-rate charge and discharge exist, and the service life of the batteries is seriously influenced.
At present, most of common heat management adopts an air cooling scheme and a liquid cooling scheme, and the problems of temperature uniformity, regional popularization and the like are often difficult to solve by air cooling, so that more liquid cooling schemes are adopted. The liquid cooling is mainly through arranging the liquid cooling board in battery module, sets up the runner in the liquid cooling board, and the heat that the electricity core produced is taken away to the mode of coolant liquid at the runner mesocycle.
Common electric core structure can be divided into square, soft package and cylindrical electric core, and square and soft package are because its great surface, great area of contact when having guaranteed its and liquid cold plate heat transfer, and heat exchange efficiency is high. Cylindrical electric core is because its special circular structure, and the liquid cold plate often can't effectively contact with it to derive the heat that electric core produced.
The common form is that the bottom cold plate is flat or coiled to conduct heat. The flat cold plate structure exchanges heat through contact with the end part of the battery core, so that the temperature difference between the battery monomers is large, and the effect is poor; the coiled pipe winding structure has large flow resistance and poor process operability.
Disclosure of Invention
The invention aims to solve the defects and provide a novel cylindrical battery cell liquid cooling module which is light in structure, high in module energy density, good in heat dissipation and uniform effect.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a novel cylindrical battery cell liquid cooling module is characterized by comprising at least 2 liquid cooling plates arranged in parallel, a cylindrical battery cell penetrating through the liquid cooling plates, a liquid inlet pipeline, a liquid outlet pipeline, parallel copper sheets, a sheet metal end plate and an epoxy plate, wherein liquid cooling runners of a parallel structure are arranged in each liquid cooling plate, liquid inlets and liquid outlets communicated with the liquid cooling runners are respectively arranged on two sides of the upper end of each liquid cooling plate, quick-insert three-way joints are respectively arranged on the liquid inlets and the liquid outlets, the quick-insert three-way joints above the liquid inlets are connected in series through liquid inlet pipelines, the quick-insert three-way joints above the liquid outlets are connected in series through liquid outlet pipelines, one end of each liquid inlet pipeline is communicated with a secondary refrigerant, the other end of each liquid inlet pipeline is closed, the secondary refrigerant is discharged from one end of each liquid outlet pipeline, and is arranged diagonally with the port of the secondary refrigerant communicated with the liquid inlet pipelines, and the other, the parallel copper sheets are arranged at two ends of the cylindrical battery core and used for connecting the cylindrical battery core on two adjacent liquid cooling plates in parallel, the outer end faces of the liquid cooling plates on two outer sides are respectively arranged on the metal plate end plates, the liquid cooling plates are fixed with the metal plate end plates on two outer sides of the liquid cooling plates through bolts, and the epoxy plates are arranged between the metal plate end plates and the liquid cooling plates.
Preferably, the coolant is a 40-60% glycol aqueous solution by volume ratio.
As a preferred technical scheme, the liquid inlet pipeline and the liquid outlet pipeline are both PA nylon pipes.
As an optimized technical scheme, water nozzles which are matched and connected with the quick-insertion tee joint are arranged on the liquid inlet and the liquid outlet.
As an optimized technical scheme, the outer surface of the cylindrical battery cell is wrapped with an interface heat conduction material, and the interface heat conduction material can be an inclined convex silica gel sheet, a heat conduction silicone grease or a high heat conduction adhesive.
The invention has the beneficial effects that: the liquid inlet pipeline and the liquid outlet pipeline form a parallel loop structure and a parallel structure of the internal flow channel of the liquid cooling plate, so that the pressure drop is small and the temperature difference between the single battery cores is small; the structure is more lightweight, the energy density between the modules is high, and the heat dissipation and uniform effects are better.
Drawings
Fig. 1 is a schematic structural diagram of a novel cylindrical cell liquid cooling module according to the present invention;
FIG. 2 is a schematic view of the assembly of a single liquid-cooled panel of FIG. 1;
fig. 3 is a front cross-sectional view of the liquid-cooled panel of fig. 1.
In the figure: the device comprises a liquid cooling plate 1, a liquid inlet 1-1, a liquid outlet 1-2, a cylindrical battery cell 2, a liquid inlet pipeline 3, a liquid outlet pipeline 4, a copper sheet 5 connected in parallel, a metal plate end plate 6, an epoxy plate 7, a liquid cooling runner 8, a quick-plug tee joint 9, a water nozzle 10 and an interface heat conduction material 11.
Detailed Description
So that the manner in which the above recited features of the present invention can be understood and readily understood, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:
as shown in FIGS. 1 to 3, a novel cylindrical battery cell liquid cooling module comprises at least 2 liquid cooling plates 1 arranged in parallel, a cylindrical battery cell 2 arranged on the liquid cooling plate 1 in a penetrating manner, a liquid inlet pipeline 3, a liquid outlet pipeline 4, a parallel copper sheet 5, a sheet metal end plate 6 and an epoxy plate 7, wherein liquid cooling channels 8 with parallel structures are arranged in each liquid cooling plate 1, liquid inlets 1-1 and liquid outlets 1-2 communicated with the liquid cooling channels 8 are respectively arranged on two sides of the upper end of each liquid cooling plate 1, quick-insert three-way joints 9 are respectively arranged on the liquid inlets 1-1 and the liquid outlets 1-2, the quick-insert three-way joints 9 above the liquid inlets 1-1 are connected in series through the liquid inlet pipeline 3, the quick-insert three-way joints 9 above the liquid outlets 1-2 are connected in series through the liquid outlet pipeline 4, one end of each liquid inlet pipeline 3 is communicated with a coolant, the other end is sealed, and one end of, it is diagonal angle setting with 3 ports that lead to the secondary refrigerant of feed liquor pipeline, and the other end of drain pipe 4 is sealed, and parallelly connected copper sheet 5 is established at the both ends of cylindrical electric core 2 for parallelly connected cylindrical electric core 2 on two adjacent liquid cooling board 1, the outer terminal surface of two outside liquid cooling board 1 is established respectively to panel beating end plate 6, and each liquid cooling board 1 with establish through the bolt fastening between the panel beating end plate 6 in two outsides of liquid cooling board 1, epoxy 7 is established between panel beating end plate 6 and liquid cooling board 1.
In this embodiment, the coolant is an aqueous solution of ethylene glycol with a volume ratio of 40% to 60%.
In this embodiment, the liquid inlet pipe 3 and the liquid outlet pipe 4 are both PA nylon pipes.
In this embodiment, the liquid inlet 1-1 and the liquid outlet 1-2 are both provided with a water nozzle 10 which is connected with the quick-plug tee joint 9 in a matching manner.
In this embodiment, the outer surface of the cylindrical electrical core 2 is wrapped with an interface heat conduction material 11, which may be an inclined convex silica gel sheet, a heat conduction silicone grease, or a high heat conduction glue.
In this embodiment, fig. 1 shows a 6-string battery module structure, the liquid cooling plates 1 of each battery module are connected in parallel, the coolant flows in from arrow marks on the liquid inlet pipe 3 in fig. 1, and then is divided into the liquid cooling channels 8 of each liquid cooling plate 1 by each liquid inlet pipe 3, the heat generated by the cylindrical battery cell 2 is transferred to the liquid cooling plates 1 through the interface heat conducting material 11, exchanges heat with the coolant in the liquid cooling plates 1, and is driven to the outside, the coolant flows out from arrow marks on the liquid outlet pipe 4 in fig. 1 after the heat exchange is completed, and completes the heat exchange of the battery modules, and the first-in and last-out main loop structure can effectively ensure uniform flow of each branch, and the temperature difference between the modules is small, the liquid cooling channels 8 in the liquid cooling plates 1 are in a multi-path parallel structure, and have small pressure drop, thereby facilitating pump body selection, safety and reliability, and is more lightweight in structure, The energy density between the modules is high, and the heat dissipation and uniformity effects are better.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A novel cylindrical battery cell liquid cooling module is characterized by comprising at least 2 liquid cooling plates arranged in parallel, a cylindrical battery cell penetrating through the liquid cooling plates, a liquid inlet pipeline, a liquid outlet pipeline, parallel copper sheets, a sheet metal end plate and an epoxy plate, wherein liquid cooling runners of a parallel structure are arranged in each liquid cooling plate, liquid inlets and liquid outlets communicated with the liquid cooling runners are respectively arranged on two sides of the upper end of each liquid cooling plate, quick-insert three-way joints are respectively arranged on the liquid inlets and the liquid outlets, the quick-insert three-way joints above the liquid inlets are connected in series through liquid inlet pipelines, the quick-insert three-way joints above the liquid outlets are connected in series through liquid outlet pipelines, one end of each liquid inlet pipeline is communicated with a secondary refrigerant, the other end of each liquid inlet pipeline is closed, the secondary refrigerant is discharged from one end of each liquid outlet pipeline, and is arranged diagonally with the port of the secondary refrigerant communicated with the liquid inlet pipelines, and the other, the parallel copper sheets are arranged at two ends of the cylindrical battery core and used for connecting the cylindrical battery core on two adjacent liquid cooling plates in parallel, the outer end faces of the liquid cooling plates on two outer sides are respectively arranged on the metal plate end plates, the liquid cooling plates are fixed with the metal plate end plates on two outer sides of the liquid cooling plates through bolts, and the epoxy plates are arranged between the metal plate end plates and the liquid cooling plates.
2. The novel cylindrical electric core liquid cooling module set of claim 1, characterized in that: the secondary refrigerant is glycol aqueous solution with the volume ratio of 40-60%.
3. The novel cylindrical electric core liquid cooling module set of claim 2, characterized in that: the liquid inlet pipeline and the liquid outlet pipeline are both PA nylon pipes.
4. The novel cylindrical electric core liquid cooling module set of claim 3, characterized in that: and water nozzles which are matched and connected with the quick-insertion three-way connector are arranged on the liquid inlet and the liquid outlet.
5. The novel cylindrical electric core liquid cooling module set of claim 4, wherein: the outer surface of the cylindrical battery cell is wrapped with interface heat conduction materials, and the interface heat conduction materials can be inclined convex silica gel sheets or heat conduction silicone grease or high heat conduction glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810897171.7A CN110828929A (en) | 2018-08-08 | 2018-08-08 | Novel cylindrical electric core liquid cooling module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810897171.7A CN110828929A (en) | 2018-08-08 | 2018-08-08 | Novel cylindrical electric core liquid cooling module |
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| Publication Number | Publication Date |
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| CN110828929A true CN110828929A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810897171.7A Pending CN110828929A (en) | 2018-08-08 | 2018-08-08 | Novel cylindrical electric core liquid cooling module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934053A (en) * | 2020-08-17 | 2020-11-13 | 山东科技大学 | Splicing type battery module for electric automobile and working method thereof |
-
2018
- 2018-08-08 CN CN201810897171.7A patent/CN110828929A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934053A (en) * | 2020-08-17 | 2020-11-13 | 山东科技大学 | Splicing type battery module for electric automobile and working method thereof |
| CN111934053B (en) * | 2020-08-17 | 2021-05-04 | 山东科技大学 | Splicing type battery module for electric automobile and working method thereof |
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